Saw vise



Oct. 14, 1941. c. E. BROWN sAw vIsE Filed Juiy 26 1959 Patented Oct. 14,1941 UNITED STATES OFFICE sAw VISE Claude .E.Brown, Santa Ana, Calif.Appucaton .my .26, waaaserial Nu. '286,580

3 Claims.

This invention relates to clamps and holding devices and relates moreparticularly to -a saw vise useful in ling or sharpening saws. A generalobject of this inventionfis to provide asi-mple, practical and improvedsaw holder or saw v1se.

Another object of this invention is to provide a saw vise useful insharpening band saws and the like, that operatesto automatically advancevthe saw When the jaws areY opened so that the sharpened portion of thesaw is fed from .the vise and an unsharpened portion is moved -to aposition between the vise jaws .to be gripped when the jaws arereclosed.

Another object -of this invention is-'toprevide simultaneous sharpening.This -action of the device greatly accelerates the sharpening 'of theblade as several parts of the blade are. automatically conditionedfor-simultaneous sharpening at each operation.

Another-objectofthis invention -i-s te provide a sawvise of the-character mentioned in which a simple, swinging movement of a manualyIhandle -or lever serves to open thejaw's'and Ito ladvance the saw bladeor blade loops, and asimilar rethe saw advancing means and to tightlyclose the jaws on the saw blade or blade loop portions. Y

' Another object ofthe invention is to provide a saw holder of thecharacter mentioned that-embodiesa simple yet very effective rneansiorbringing the teeth of saw blade loops into Aregister for Vsimultaneousfiling and for holding, the loop -portions in correct position forling,'sai=d means operating automatically/when the Vj aws areopened andclosed.

.Another object of this invention is toprovidea saw holder or vise ofthe character mentioned 'that embodies a minimum number Aofsimple-inexpensive parts. In the holder --or vise -of ythe presentinvention the clamp or vise proper comprises a single integralwmemberandthe levers, links, etc. of the vise actuating means and the sawadvancing means are formed of simple,in expensive plate stock or strapstock.y l A Another object of this inventionfisto prov-ide 55 securedtoasupports such .as -a workbench, 1or

-a saw vise of the character referred fto that Ais .readily :adjusted tohandle rsaw blades, etc. of

various widths and lengths -andis'we'll suited VAto holdiband saws thathave been arranged .or

'looped'to have -a plurality Aof ycon-vo'lutions or loops that may be.simultaneously .gripped Ibysthe vise jaws so that their teeth maybesimultane- Vzously tiled and .that :may be .advanced vin unison when.the :ja-ws are opened.

A.further object 'of this invention is to pro- Ivide improvements inrsaw vvses or holders -ofthe Lgene'ral :type disclosed .in-my priorPatent/No.

: ljlZZglil, .granted August '12, 1930.

r-'Ihevarious .objects `andfeatures of my inven- 'ltion .will .be yfully:understood from the following ..deta'iled description -of a `.typicalpreferred form .large'd fragmentary horizontal sectional viewtakenaslindicated by line 4-'4 lon Fig-8. -ililigf' -islanenlarged.fragmentaryvertical sectional View :taken-as indicated by line.5--5 onFig.'13,.ancl- -F-ig. 16. :is :an .enlarged perspective view ofthe cam washen 1 :The improved saw holder-or vise of the vinvenrturnmovement of the lever operates torestere Vtion may bevsad ZOmDISS,gnera-lly,=a.clamp 'orzvsebody. I0, `adjustable means I I orsupport--ing and locating ,a vsaw blade rB in the body Ill, vmeans l2 foractuating the clampor vise body l-Iilzto .gripfthegblade B,-fm'eans f I3 interconnected --Wi.th-Lthe.:means |12 for advancing-the blade-B.andadjustable ratchet means vI4 .forpreventing a "reversemov'ement ofthe blade B and vfor holdthe :blade vin Aposition for gripping bythevlise .l Ody.

The clamp-or vvise 4body l0 -is adapted tofbe sthe like. The bodylll ispreferably, though not necessarily, an integral casting. vIn vthe-prefieri-edf construction :illustrated lthe body 1U lcorn- `:prises aibase .orshank .1.5 fand spaced A-upstanding vbranches or jaws A lextending upwardly `from `the shank l5,- AThe -body shank l5 -may befixed .tolthesupport VS Vbyrbolts or vscrews l1. 'The jaws-16- areintegrally joined with the iupper end o'f. 'thensh'ank '.115 and extendYupwardly in `spaced adjacent edge of the front jaw I6.

generally parallel relation. Ribs I8 may extend along the faces of theshank I5 and the jaws I6 at their margins to strengthen the body I0. Theinner sides of the jaws I6 are preferably flat and plain. The upper endsof the jaws I6 are suitably rounded and the upper parts of the jaws arethickened at their inner sides to present opposing flat gripping facesI9. The faces I9 are substantially parallel and are finished to engageagainst the opposing sides of the saw blade B. In the preferredconstruction recesses 2|] are provided in the lower sides of thethickened upper parts of the jaws I6. The jaws I6 are adapted to beflexed toward one another by the means I2 and are adapted to return totheir normal'y open positions through their inherent resiliency.

While the jaws I6 are adapted to gripV saw bladesy of various kinds itwill be assumed that the jaws are gripping three or more loops of theband. saw blade B that has been iiexed or shaped to have the severalgenerally concentric loops. The portions of the blade B gripped by thejaws I6 are in side b-y side relation and are pressed one against theother by the jaws. It is to be observed that the clamp body or vise bodyI0 is a simple integral member requiring a minimum of machine work.

The means is provided to guide and support the saw blade B so that theblade is received between the jaw faces I9 and has its teeth and upperedge portion exposed at the top of the vise or holder. The meanscomprises what I will term a rest 2| arranged between the jaws I6 andprojecting horizontally or laterally from the opposite sides of thejaws. The support or rest 2| preferably has a dat face engaging againstthe inner side of the front jaw I6 below the thickened upper part of thesaid jaw. 'I'he projecting end portions of the rest 2| extend upwardlyand are thickened to form lugs 22 and 23 presenting upwardly facingsurfaces 24 and 25, respectively. The surfaces 24 and 25 are at andfinished to be engaged by the lower edges of the loop portions of theblade B and serve to support and guide the loop portions of the blade.The lug 22 is of substantial length and is thickened to shiftably engageagainst the The lug 23 is somewhat shorter than the lug 22 but isthickened to slidab-ly engage against the adjacent edges of the two jawsI6. The engagement of the lugs 22 and 23 with the edges of the jaws I6assists in guiding the shiftable rest 2|.for vertical adjustment. Itwill be observed that the two spaced blade supporting surfaces 24 and 25occur at the opposite ends of the pair of blade gripping faces I9 toeffectively steady and support the blade B.

In accordance with the invention the means II is adjustable, that is,the rest 2| may be adjusted vertically to guide and support saw bladesof various widths so that the blades will have their teeth in correctposition for filing. The rest 2| is provided with a vertical slot 26 toreceive a bolt 21. The bolt 21 may be in the nature of a carriage bolt,as illustrated, and may pass outwardly through an opening 28 in thefront jaw I6., When arranged in this manner the bolt 21 has its headengage against the rear face of the rest 2| Yand has its square shankpart received in the slot26. A wing nut 29 is threaded `on theprojecting forward portion of the bolt 21Aand is adapted to engageagainst the forward surface of the front jaw I6. When the nut 29 isloosened the lugs 22 and 23 may be engaged `shank 33 to turn with thebolt.

to move or adjust the rest 2| vertically to the selected position. Thenut 29 may then be tightened down to set or secure the rest 2| in theselected position. The slot 26 is preferably of substantial length toprovide for a considerable adjustment of the rest 2 I. A raised portion30 may be provided on the upper end of the rest 2| to'permit the upwardelongation of the slot 26 and thus provide for a greater adjustment ofthe rest. The portion 30 is receivable in the above described recesses2U in the jaws I6.

The means I2 for actuating the clamp jaws or vise jaws I6 is operable toflex the jaws inwardly to bring their faces I9 into secure gripping andholding engagement with the loop portions of the saw blade B and isadapted to free the jaws so that they may spread apart through theirresiliency to assume their normal open positions. The means I2 is amanually operable means comprising a shaft or bolt 3| arranged throughaligned horizontal openings 32 in the two jaws The bolt 3| extendsthrough the slot 26 and is preferably proportioned to engage with theside walls of the slot. With this arrangement the bolt 3| assists thebolt 21 in guiding the rest 2| for vertical movement. The bolt 3| issuiiciently long to project beyond the jaws |6 and is arranged with itshead at its rear end and with its threaded portion at the front of thedevice. As illustrated, the bolt 3| is a carriage bolt having apolygonal or square shank 3 at the base of its head 32e. A handle oroperating lever 34 is secured to the projecting forward portion of thebolt 3| so that the bolt may be manually turned. The handle lever 34 hasan opening receiving the bolt 3| and nuts 35 are threaded on the bolt 3|to clamp against the opposite sides of the lever. This, of course,sezures the lever to the bolt 3|. The handle 34 .s keyed or set in agiven position relative to the bolt 3| by key, polygonal or flat faceengagement as at X.

The jaw operating means |2 further includes a cam mechanism forproducing flexing and inward movement of the jaws I6 when the handlelever 34 is swung in one direction. A washer 36 is arranged on the bolt3| and bears against a raised part or boss 31 on the rear jaw I6. Thewasher 36 has a square or polygonal opening 38 receiving acorrespondingly shaped projection 39 on the rear jaw I6 so that it ispositively held against turning. The Washer 36 is shaped to have twodiametrically opposite lifts or high parts 40 projecting from its rearside. The parts 40 are joined with the main face of the washer 3.6 bytapered or inclined surfaces 4|. The cam means further includes a discmember 42 arranged on the bolt 3|. The disc member 42 has a square holecooperating with the square Openings 43 in the disc member 42 containballs 44 Which project from the front face of the member for cooperationwith the washer 36. The balls 44 are adapted to engage or ride on theface of the washer 36 and upon turning of the bolt 3| may ride up thefaces 4I to the flat surfaces of the parts 40. A lever 45 is arrangedbetween the disc member 42 and the bolt head 32a. The lever 45 has asquare opening receiving the bolt shank 33 so thatvit turns with thebolt. The lever 45 closes the rear side of the openings 43 to preventdisplacement of the balls 44 and to hold the balls in position forcooperation with the cam washer 36.

An overhang or apron 10 may be provided on the rear jaw to shed ordivert the saw filings veled or pitched for the same reason.

from the cam mechanism just, described. The apron 1a may extend betweenthe ribs I8 and lies in close overlying relation to the Washer and thedisc member 42. The upper surf-ace of the apron 19 slopes Ydownwardlyand outwardly to better divert the lings and the peripheral portion'ofthe disc member 42 may be bev- A spring washer is arranged between theAfront face of the f rontbody I5 and the rear nut 35 to urge lthe bolt3|` forwardly. The Washer 46 is a split .flexible washer and may betermed a lock washer. The function ofthe washer 45 Will be laterdescribed.

The parts are proportioned and related so that the jaws I3 are'in, theirnormal open positions when the balls vlli engageon the main or plainsurfaces of the rwasher 36; Vvhenthe bolt 3| is turned byA swingingofthe handle lever 34 lthe balls de ride up. the surfaces 4I into theraised parts to of the washer 36. This action causes` linward flexing of the jaws I6 so that the .faces I9 tightly grip the blade B or thelooped blade portions. The parts 4,0 have iiat vertical surfaces ofsubstantial width and the balls 44 remain in cooperation with these flatsurfaces until the lever 34V is again moved. The washer vle is capableofsubstantial compression when allows the ballsM to ride onto the flatraised surfaces of the parts 4e after the blade has been gripped by thetwo faces I9 and gives the holder a greater range of usefulness adaptingit to hold saws and saw blades varying greatly in thickness.

The blade advancing means I3 is operable to shift the sawr blade B adistance ysubstantially equal to the length of the jaw surfaces I9immediately following the opening the jaws I6 and with the same motionor an extended motion of the operating lever 34. The blade advancingmeans li3 includes a lever .41 arranged behind the rear jaw I3 andpivotally supported at its lower end by a pin or screw 48 on said jaw.

The leverr'l is of sufficient length to extend upwardly beyond the upperends of the jaws t3. A -pawl or bladey advancing dog 49 is pivotallyconnected Iwith the upper end of the lever YI1 by a pin 59 and hangsv ordepends by gravity to o0.- operate with.l the teeth of the blade B, orthe lteeth of the loop portions of the blade.

The levery 41 is` operatively connected with the jaw operating means I2in such a manner that the dog 'f1.3 is operated into cooperation withthe teeth of the blade B immediately following `the opening of the jaws|16. and by the same movement of the lever 34 that effects opening ofthe jaws. A link 52 is connected with the lever 13,5 by a pivot pin 5,3and is. connected with the lever 41 by a similar pin 54. It will be seenthat the lever d5 and the link 52 form a toggle connection or a linkconnection between the bolt 3i Vand the lever41. The lever 4.5 ispreferably extended beyond the pivot pin 53 to have an outer edge 5 5coo-perable with the edge of the lever` 41 to limit its pivoting. Theengageme'nt of the lever end 55 with the lever 41 of course limitsswinging of the operating lever 3d in one direction and preferablyprevents the axes of the bolt 3|, the pin 53 and the pin 54 fromreaching .afdead center position where 'they .are aligned;

When the'lever1end55 :is in engagement with or adjacent the..lever i1rthe jaws I6 are closed orin Vvholding .engagement with the blade B orlooped blade portions,y andthe dog 41 is in its retracted idle position.This position is illustrated in Fig. 1 of the drawing. When theoperating lever34 .is swung upwardlyfrom the position illustrated inFig. 1 of `the drawing the balls 44 leave the4 cam parts 4I) and rideonto the plain faces ofthe cam washer 36 so that the V.iaws.Ixiiextotheir open positions. As the balls 44 rmove down theinclinedfaces 4I the dog- 49 .movesto' :the position where its blade 5Icomes into cooperation .with the teeth of the saw blade B. Furthermovement of .the handle lever 34 merely moves the .balls 44 across theplain face of thewasher 33 and does not Vaffect the jaws I6 but doesmove the dog 49 so thatthe Vdog advances the blade B between the openjaws I3. On the return stroke of the handle lever 34Y the dog 49 movesback to its retracted position clear of the saw teeth before the balls4:4 ride up the surfaces 4I to cause contraction of the jaws I6.

The means I4 operates to hold the blade B against reverse .movementduring the return stroke of the dog 49, serves to prevent the loopedblade from springing from between the jaws I6 when the latter are.opened, serves to assist in aligning the teeth of the looped bladeportions received between the jaws I6,land operates to support the sawadvancing dog in its normal retracted position. The means I4 includes apost 51 adjustable vertically on the lug 22 of the rest Il. The post51is an inverted L-shaped element formed of plate stock or strap stock.The long vertical leg of the post 51 is slidable in a groove 58 providedin the rear side of the lug 22 and the post is arranged so that itsshort leg 59 projects forwardly. A slot 6I! is provided in the long legof the post 51 and receives a bolt GI which passes forwardly through anopening in the lug 22. A. wing nut 62 is threaded on the projectingforward end of the bolt 6I and is en- `gageable againstv the front ofthe lug 22 to lock the post 5.1 in anyselected position.

The upper leg v59. of the post 51 slopes downwardly and inwardly towardthe jaws I9 and 'carries a ratchet element in the form of la leafspring- B3. The leaf spring 63 may be riveted to the leg 5S. The leafspring3 slopes downwardly and inwardly toward the jaws I6 and isarranged so that. the dog 49 may move up and down on it when the meansI3 is operated. The lower edge ofthe-leaf spring 53 is shaped andarranged to have ratchet engagement with the teeth of the loop portionsof the blade B. As il-.

lustrated in Figs. l and 3 the blade B isarranged so that its teethoppose or face toward the spring 63 and the engagement of the springwith the saw teeth effectively prevents a reverse movement of the sawblade during the restoration of the blade advancing dog 49, andeifectively holds the blade or blade portions against upward movement.

In operation the band saw blade B is looped, as described above, andisarranged with three or more loop portions between the jaws I3. The rest2I is adjusted vertically and secured in position by tightening of thewing nut 29 and the post 51 is adjusted and secured in place by the wingnut 62. The rest 2| and the post 51 may be readily adjusted to supportthe saw blade B in the correct position and to assure the properengagement of the ratchet spring |i3`with the saw teeth. Following theadjusting of the-rest 2| and the post l' the operating lever 34islowered or swung to the position illustrated in Fig. 1 of the drawing.This operation of the lever 34 of course turns the bolt 3| and causesthe balls 44 to move across the plain surfaces of the washers 36 andthen ride up the surfaces 4| to the ilat faces of the parts 40. Thecooperationof the balls 44 with the surfaces 4| results in inwardiiexing of the jaws I6V so that the jaw faces I9 tightly hold or gripthe blade B. The above described operation of the handle lever 34 bringsthe dog 49 to the retracted position clear of the saw blade B. The dog49 moves clear of the saw blade B before the balls `44 reach the flattop surfaces of the cam parts 40. The engagement of the balls 44 withtheflat surfaces of the cam parts 4U holds the parts in the condition wherethe blade B is securely gripped by the jaws I6. The teeth of thatportion of the saw blade B firmly held by the jaws I6 are then filed.

Following this filing operation the handle lever 34 is swung upwardly toopen the jaws I3. This operation of the lever 34 causes the balls 44 to.move down the surfaces 4| to the plain atsurfaces of the washer 3S andas the balls 44 move down the surfaces 4| the jaws IG flex apart to freethe blade B. Operation of the lever4 34 also causes swinging of thelever 4l and movement of the dog 49. The blade 5| of the dog 49 ridesdown the spring 63 and comes into engagement with the teeth of the sawblade B immediately following the opening of the jaws I6. When the blade5| cornes into engagement with the teeth of the blade B it automaticallyaligns the teeth of the three or more loops of the blade. The spring 63engaging the teeth tends to restrain or hold back any loop or loopportion that may be in advance of the others so that the movementimparted to the bladeloops by the pawl or blade 5| brings the teeth ofthe several loops or loop portions into correct registration. 'I'heremainder of the stroke or movement of the handle lever 34 pivots thelever 41 and moves the dog 49 so that its blade 5I cooperating with thesaw teeth advances the blade B or the several loops of the blade. Theblade B is advanced a distance substantially equal to the length of thejaw faces I9 and the portions ofV the blade that have been sharpened orfiled are advanced from the jaws and unsharpened portions of equallength are brought to position between the jaws. The lever 34 is thenswung down to the position illustrated in Fig. 1 to reset the jaws I6and to return the dog 49. During the restoration of the dog 49 the leafspring 63 cooperatingwith the teeth of the blade B prevents the blade orblade portions from moving in a reverse direction and holds the bladeportions down in place. The teeth of the several blade portions areautomatically brought into register as the loop or blade portions areadvanced and when the jaws I6 have been closed the aligned teeth of theseveral blade portions may be simultaneously filed.

rl'he saw holder or vise of the present invention embodies a minimumnumber of simple inexpensive parts. The operating lever 34, the lever45, the lever 41, the link 52, and the dog 4S may all be formed ofidentical plate stock or strap stock and are all simple parts. The bodyI0 may bea simple one-piece casting and does not embody any movingparts. The device is adjustable so that itis capable of handling bandsaw blades, and the like, of practically any Width.

.Having described only a typical preferred form and application of myinvention, I do not wish tobe limited or restricted to the specicdetails herein 'set forth, but wish to reserve to myself any variationsor modifications that may appear to those skilled in the art, or fallwithin the scope of the following claims.

Having described my invention, I claim:

l. A saw holder comprising a pair of normally open jaws operable whenclosed to grip a saw blade, arestA for shiftably supporting the blade,`means supporting the rest on the jaws for adand the said member, aspring blade for cooperating with the teeth of the blade, and meansadjiistably supporting the spring blade on the rest to slope downwardlyand forwardly relative to the direction of advancement of the blade sothat its lower edge cooperates with the rear edges of the teeth toprevent retrograde movement of the blade.

2. A saw holder comprising a shank, jaws extending from the shank inspaced relation and having alignedtransverse openings, a turnable boltextending through said openings, a handle fixed on one end portion ofthe bolt, a member keyed to the other end part of the bolt, a cam on onejaw having a rise, a ball on the member cooperating with the camandmovable onto the rise to ex the jaws into holding engagement with `thesaw blade when the handle is turned in one direction and movable off therise to allow the jaws to open when the handle is turned in the otherdirection, and means for advancing the blade when the handle is turnedin said other direction.

, 3. A device of the character described comprising jaws normally spacedapart and operable toward one another to grip a saw blade, a restmounted. between the jaws and having a portion extending therefrom forsupporting the blade, means for actuating the jaws toward one another togrip the blade and operable to release the jaws for return to theirnormal condition, means for advancing the blade, means for actuating thefirst named means and for operating the saw advancing means immediatelyfollowing the restoration of the jaws to their open positions, a springblade, and means for supporting the blade on said portion of the restfor vertical adjustment and to slope downwardly and forwardly relativeto the direction of advancement of the'blade so that its lower edge isengageable with the teeth of the saw blade to hold the blade downagainst therest and to positively prevent retrograde movement of theblade.

CLAUDE E. BROWN.

